Home / 13,171.29-18,175.75-7,203.03

Finding the Fourth Proportional to 13,171.29, 18,175.75 and 7,203.03

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Solution

The fourth proportional to 13,171.29, 18,175.75 and 7,203.03 is: 9,939.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.29 : 18,175.75 = 7,203.03 : x
  2. Step 2: Convert to fraction form
    13,171.29/18,175.75 = 7,203.03/x
  3. Step 3: Cross multiply
    13,171.29x = 18,175.75 × 7,203.03
  4. Step 4: Simplify right side
    13,171.29x = 130,920,472.52
  5. Step 5: Solve for x
    x = 130,920,472.52/13,171.29
  6. Step 6: Final answer
    x = 9,939.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.